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THE W I RELESS^NSTiTUTE
-OF AUSTRALIA- .
TASMANIAN DIVISION
BOX 851J, &. P. O. HOBAHT
APRIL 1964/ MONTHLY BULLETBT PRICE 6cL
FRES:EDENT TREASURER SECKETAEY
Mr. T« Alien Mr. C* HaiTisson Mr. K. Spiegel
VK7AL •VK7CH VK7KS
Registered, at &• P. 0.-, Hobar-b, for -fcransmission by pos-b as a periodical.
GENERA1 MEETING
The next monthly meeting of the Division will be held in the Clu.'b
fioom, 147 Liverpool St., Hobart, on Wednesday, 1st April 1964 at 2000hours.
The lecture will be "Srends in Receiver Design" , Joe VK7BJ is the lecturer,
so pass the word around, as this could be a raos'b informative eveninge
Northern Zone -
The ne^-t meeting will be held on FRIDAY, 10th., April 1964 at 2000 hourrs
at 102 Charles Street, Laanceston. Unfortunately I have not "been . advised of
the programme for the 'evening.
North Western Zone-
The usual monthly meeting will be held in Lakin's Hall, Ulverstone, on
Tuesday, 7th., April at 20000 hoars.
Council Meetin -
The nex't Council Meeting will be held in the -Club Room on Monday 13th.
April at 1930 hours.
ANNUAL GENERAL MEETING AIJD DINNER 1 6 .
The Annual General Meeting and Dinner this year v/as held at the "Anzac Hostel"}
49 Pat-terson S-fc., -the hos-ts being the Northern Zone.
The mee-ting commenced at 1830 hours, there 'being approximately 40 members present.
Election of Officers t
The following Officers were elected -
Patron - L. Crooks. 'fe7 BQ.
Auditors - Go Richardson, L. Jensen. 'VKTLJ.
Legal Officer - I. Nicholls. VK?ZZ.
Traffic Officer -R. OSMay. VK70H,
QSL Officer - J. Batohler. YK7JB.
Lecture Conmittee - L. Edwards. VK7LE.
Divisional Correspondent - G. DSBnden. 'VK7ZAS.
Disposals Commit-bee— E. Cruise. •VK7EJ, G. D'Emden« VK7ZAS. D. Thorne. VK7ZAI,
The Wireless Institute Of Au.s'tralia. Tasaanian Division
April 1964. Monthly Bulletin Page* 2
Election of Officers continued - .
Noise and T. V. I. Committee - D* . Wa-bson. •VK7DW. D< Thorne. VK7ZAI, L. Cordell, VK7KC.
V. H. F. Officer - I. McliOlls-, VK7ZZ.
Librarian - E, Beard, VK7EB, al 30 .Publicity and. Bulle-tin Editor ( no coramen-fc).
Broadcast Officers - T, Connor, VK70.T, I. ITicholls, VK7ZZ.
Business -
"The q.ues-fcion of reconsidering the time of -the weekly Di visional Broadoas-fc time
has been refered -to all Zones for comment. The result of which to be foreivarded to
Ck3unoil»
Dinner - .. — . .
Dinner commenced, at 1930 hours, 61 persons being-present.
South -21. North. We'st - 4. North 34.
Mr. W, Hollingsw.orth who was aooompanied tiy his wife was our Official Guestyably
responded on behalf, of the P. M. G, Kepartmen-b,. . .
A Hearty thanks -to our Northern Zone, especially to Den, VK7DK their popular President
for'their hospitality, and. . excellent-organisation.
The Divisional President has requested me to repor-t his concsrri on th'e-poor'repres- ..-
entationfrom the North Western Zone* Especially as the meeting and dinner, v/as held
in Launceston, with a view to enable the Zone members to attend- more easily*
SUBSCRIPTIONS -
Subscriptions received since March Bulletin to 15»3*64,
Acknowledgements and -bhanks to the following 5 VK7ZAO; VKTBH; VKTEJ? VKpZAG^ VKTKC;
VK7GV; VKTRY; VK7AL, VK7K. A, VKpZDM^I VK7ZTC., VK7CW$ VK7ZZ§ ;•'..•»•.. VK7CT, VKTSK? VKTM; •
VK7LD5 VK7AI? VKq'JO» VKTZAY^ VKTDC^ VK7SJ; VK7GB^ VKTZAO^ VKpJ Pj VETPJ; VKpKH? VK7XL0,
VKTZAV^ VK71*iX§ VKTDR? VKTTE^ VK7J. B^ VKyZBA. VKpLL^ VKyZ/lZ.
Messrs G. Russel - Green§ L. A» Co.op'er 5 I. Eadie^ S. R. Cooperj T. B. Berwiok^ R. J. Geeves
B, M. Muir?, D. -Por-bhouse? D. Alien? D. P. Ford G. Wade.
Let us endeavour not to have any stragglers this year chaps, a.fter all yoii only have
to pay it once, besides our Secretary has enough letters to write, I know he does not
relish -the idea of having -to write :and cane ell YOUE Su'bsoription to A. R. i!!?
NOTICE ^
Would the person who borrowed the morse key from the "Shack" at -the Club'Rooms
please return same. This key is th^ personal proper-ty of Terry Connor, and is of
considerable sentimental value, On-i-fche return of same Terry advises me that he will
endeavour to obtain another key, to assist this person to attain the necessary practioe<
STRAYS
Boy I That J'mnual Dinner must have been something { lan, VK7ZZ •( Zombie Zombie)
returned , or should I say , was delivered, back to us considerably the worse for
wear. Tom 'VK7AL lost his voice and. 'ooiil'dnt attend a special Council Meeting
l3ecaiise of same* Kust have been that Nor-fchern Brew - or did. you try one of your
ov/n ooncoctions on them Denny ?
W-eloome back to the Apple Isle -bo Bryan Syre, VK7ZBE, sf-ber his s-fcay of duty down
at Davis Base* Fine hunk of "face fungus" you. are sporting there Bryan,
The 'Wireless Institu-fce of Austrg. lia. Tasmanian Division
April ;1964 • ci Page 3
STRAYS con-ti nued. ...
; t, i --—•—. . ^^,'f^ • ::'<ix . ••
^eCT'"''fchaT'VK7BS,
, . , . . .
is contemplq.
L'I. t. '. —
ting» a r.e' -build
• i . ' • • •
of • their
• »
..' Transmi-fc-ter.
• • *
.'V%7JB X
am 1/old is to do -the design v/ork, considerable assistance by Doc. Kelly
, . ~-' A. '-;' " -• ... • •-.. '. ., T
.
VK7LL, plus manual h&lp from Grosby Russel-. -r Green should bring adeq^ua-be
signal . from 13th Ho'bart Scaut Headquar1, ers. How about -the Zones duplicating
~L°"~::-~"" -~'--. -- '--'» ' . • • * •'•• » ' •
this v/ith the Youth Radio Glut) par-ticipan-bs in their area?
'"'""See that JAck. VK7JB. -is to do. a Civil'.Defence Planning Cour. se on the Mainland..
aft. ey. Eas. 1;er. Jack will . also reprasen-fc -the Iriartitute lover, there. -It would ube
•:. ' . q>PPreciated if all members 7»-ho are interes-fced in Civil Defence v/ould notify
. Council through their respective Zone Secretary. This is a good. cause chaps,
Nationally, " as vre'll as r'ublicity wise. May I add, an exoell"e'nt way to
ju^-fify o'Ur exi's-Eanc'e as''Radio" yjnateurs -
please co -
operate.
• COUI? OIL b VK EB '
-" Council meeting for the month o'f March' was h"eld a-t the QTH of bur worthy
' F-residen-b" VK'7'M?9 who vvi-th-Ms'good lady, 'ac-fc'ed as hos-bs -to mem'bers of Council
"and 'their wives at a farewell gathering -bo our "la-te" Treasu.rer Snow,' VE7GH
"-;' and his wife." I^Tegot'iati ona'we're made' t'o Snow's place "of employment, in an en
i.. e"hde"avc?ur ''-fco re-bain him in the 'Sou-bhern par-b of '-the S'tate - the pric'e was
more than the Ins+i'ttt<t®~&^niTt--possi'tei7-^«^-^'^'»
• so-*he'-N»VV'. Zone gains a
.,-.... g •be-ra. ihg'member. Seriously, it would be impossi'ble for me to acknowledge all
-the du-tle^ performed "by Snow whilest in"t:he lSouibh, ' K*n'c*win'g Snow, he would no-t.
•like'me to make" a fuss'about 'i-t anyway - however, from one' who kriows what' .
'; -thankless ''jot?s he hab to- perform ( especially the Bai'Ietin -'M ) may I,
•" on 'beh'alf *^f ;the Presideri-b, ' Counteil, an'd mem'bers generally, say very
sinc'erely. - "-Thank you Snow, for a "jo'b •very well d'bne " , .
Thank you. Torn, and. Iflrs., .Torn for a very enjoya'ble evening - in a later Bulletin
° I-:hope*to'-c&ax' Tofn i-h s'u'pplyin'g the plan's and "specifications for a Mobile Barbecue,
come Camp" Warmer (chop 'burner') easily adjust able to -three', co nvenien-fc sizes.
Council-'business consisted of briefly, MiniiteB'? Accbunts for Payment -
;-;- Articles of .Associa-tion (:- -dealt with' very-afely by vf7Z^ and" W.I'EJ- *)!^as ;
reading of the-Ag&H. d.a.-fss-'the .. F&deyal. ••Go. unoir^-tae. et'i-tig-a-fe-Easter.
Nexj; raon-fch G^off- VKTZAS', ypur new CQUncillor . for this . year ^ will be taking over
as •Counoi. l. Repor-ber as. I. have Snows, old job as Editor ( lucky me),...
Tha-b is' all for"'this month chaps
-T3ts---—-—--••-
Ted Beard. VK7EB
i .. .. . ' • '¥or Bulletin Cbmmitt'ee
vt.
The Monthly Bulletin of -bhe V/ireless Institu. -fce. of Australia.
)ril 1964 Tasmanian Division. Page. ^
TECmT.ICAL by F»Eo Mcholls ' VK7RY "
r i,
f^"^ f'r
.
":i'-".S'~€'''ryi'~'i"^ f':""f "V1^-.-..—.
A. „I €'
>0 f
{ Af {'"''i.-t S ~*
CfC> — 5oo v
---• "c
^0 <: y c ^. (S
0.. [ r P<,{T-
^. 4- 0 >/-
r A.? • ^- ^
.
—~^f-.,..^.....
-^.L
1 0 Watt A^C. Line Volta e Re ula-fcor*
T1 Detailss , - . ......
Core cross section 2 sq» inches. Air gap , 005" to . ^15"
450 turns 20 SWG or 19 B&S enamell&d. wire -tapped as follows
AB G D EF
0 . 350 375 400 425 450
T'2 Details s
Core cross section 4 Sq.. inches. No air gap. Interleaved
laminations. Bolts mu. st not pass through lamination holes or use non -
magnetic bolts. 400 turns 18 SWG or 1? B&S enamelled wire tapped as
follows -AB C DEF G
0 200 225 250 275 300 400
Adjust tapping "X" for regulating qualities and adjust tapping "Y"
for correc-t Voltage ou. -bpu-fc..
The regulator gives good eq.uipment protection as overload on -the ou-tput only.
oauises vol-fcage to be .considera'bly reduced. Ou-fcput may even be short circuit
without damage.
I, T, U, Fiind.
We acknowledge with thanks dona-fcions received from the following
VK7ZAG - VK7BJ - VK7GT - VK7JO - VK7LJ - VK7CH -.
Total in hand is now CTor-bhern Zone £15-9-6
North Wes-b £, 15-8-6
Rest £ 57*15.7
£ 88-13- -
^ Lil
Wireless Institu'fce of Aus-bralia, Tasmanian Division onthly Bulle-fcin-Apri.l r 64
VEF SUPPLElffitTT W7^Q
The 1964 Athol... Johns cn Contes-b has come and gone, indic&'bions beins .that it was
quite auccessfull. One pleasing aspect of this yea'rs con'bes-t ^NQS the increased par-fcic-
ipation from -the North and North West zones, this spreading the activity over . a-greater
"ue3r'e№ of 'the stete than in previous years.
Hcwe-ver, por-bab. le-and. mo'bile activity vfas no-fc as extensive as m'i.s-h-t; have been hoped
From Mount B&rrow, Reg, 7RL, operating on 50 MC/S and 144 M"./S, a'nd Kevin, 7ZAH on 144
MC/S, worked into Hobart- and along the Forth ^es-b Coas'fc These chaps should return qui-fe
high scores. In tihe Siu-fch; DEPVS, 7ZAI, №nd C-eoff 7ZAS were ou-b mobile, working each
other and back to I'?obar'fc from -various nr'otis around the S. 'T. corner of the state.
No actiivi-by during -fche Contest has been repor-fced on bands s. 'bove i44 MC/S; for t-R-stK-
ins-fcance on t;he new ley acquired 432 ?.;C/S band.
Apar-fc from -bhe Athol Johnson Con-tes't very li-b-tle to report on; down South &^ leas-fc
50 MC/Q. " ^ - -^^- ^ ". - - —^-
The on y interesting cont;»et;s made durinp- Feb and March'-' were be-tavecn'"7RL portable
on Mount Barrow, to 7Z.AI and 7Z.AQ in Hobart; made during the Gon-fcest;. . Although these
contacts could not be regarded as ex-bra ordinary, i-b is believed -fche.s'e aro 't;he firs-b
50 MC/S g.round'ws-T'e con'bacfcs 'beteeen N and S Tns.. £0 MC/q h^s .never been exploitedfor
N-S working previously, so i-b will be in-bere s-fcing t. o see ho'.v •fchis bsBtd compE-ires with
144 MC/S for Ho bar t L^unceG-ton working.
Q'therwise, no 5o MC/S ac'bivi'ty of note I>?o doub'fc ©veryone is prepn. rinp to move to
52 MC/S by fixsx April 1st.
144 MC/S
Activity is being maintained -tr. hroughoi-'-b -fchs at-'. 'be on this 'be. nd. The usual pang st;ill
active at; 20'"K) hrs. >csundsy nigh'ts on 144. 1^, -irt . Hobar-fc. Ac-fcive stations in -fche Sou-fch has
decreased by two as a result of the -fcran's'for of ±&s isanx 77AV and (T. ZAO t;o the N'. !"J-.
coast.
7ZMH and 7PF in Lqunoeston zvere vrorked by 7ZAC. in Hobart; on 3/§ signals up -fco S8.
Frftm 26th to 28th Feb. inclusive, a -fcemperature inversion was noted in §. Tas..
GTV9 and HS'i/7 were recieved 9. +; viewab.Is levels fcy 7ZAP at Mount TlTclson. I'Tcr-thsrn Tas
TV st-a-bions were ccnsiderauly strapper than usual in Kobp. r4'; itself during this -fcime.
Unfor-fcunaAely, no 144 .;'. C/C D;, worked from Hob?. r+;. ^tro. ngsly, thiG inversion did not
noticeably affeot 1 Tas«. (••-"la'fcertrr^orn&t. ion in !''•;•;'. Zone Notes.;
March V. "LF. Group Meeting^
This was held on 18 5, 9 members ^at-fcendinfi. . Lost- of the d-nscussion was concerRed wifa
a brief analysis of ths A. J. contest;, rtony su,R~. p;est;ions for the running; of future con •
tests were put forward.
iorth l.iest Zone no-tes; by the Voice, VX7ZAV.
During Jan. and early Feb., several openings +;o VK3 wore no-bed by members from -this
area on lA4:i;;C/S. Qn 13-th ^an. Bob, 7;"Al, worked 14 -'/K3s, beginning "•t; around 18">r' hrs
continuing -bo CI G2Q Jan 14th. SignalG varied from S7 to S9, and t, he ~. 'k5a were using TXs
ranging from 522s to loo watt;n or so. On Feb., 3rd, the band opened. ag°in, quit;0 lat. e at
night, and Bob works ci .':>no-!;. he-r two.
On 28-bh Feb. ^evin 77AH , pnr-tnblo or:.-. ^ i^oun-fc E. '-. rraw , worked 3 ^;K3s, all at 5/8
bo-fch 7rays. S-ba-fcions worked were 3ZNJ, 3.'.3p and 3':AV/U.. E'pvin was using a mininii-fc-ber
running 5. 5 zva-fc-bs input. , a 522 reBeiver and a 10 elemen'fc yagi. It' is believe'-1 7LZ also
worked these stetions, r. nd 7RL v.'Re hepred b'/ -bhe TTK3s at 5/5 , bu-t: was unable -bo copy
due to some sor-fc of in'ber.fer'-nce. ( This opening oould havs been caused by -bhe in-v-erss
-ion which affected S Tas. for 3 days around this time, Eowever if so it vrould hf. ve been
expec-fcsd tha-b 2inx openings in -ths I^orth would hp. 're been of lonirer duration than rxy-
reported, TJo Dx s-fc all was worke'-l from •fc'-'i. " N. '. ;'. Goas'fc during this period . ... . . 7Z^n-Q.. )
Both Bob and Kevin &rs engaged in building mobile equipment; Eeg 7.7AO is active
mobile and portable; and 7ZAV was mobile but the rig ms blown up at lone last; after a
long list of troubles, and is now undergoing an extensive rebuilc';.
On t.he 14th Feb. %ZAO a-fc L'evonport,worked 7Z.AA and 7?AV a+; Eurnie, and was heard by
7Z.GE. Neville, 7ZEE, has been on the air a couple of times lately af-t r a lon'r abaence
from -bhe b&'nd due 'bo TVI.
All •fch>3 boys up this enc1 o? the island enjoyed -fchemselves during -bhs Athol Johnson
oontes.t; , and we are anxiously awaiting the resul-fcsof same. Activity on 'bhe coast
should increase by 2 or 3 BE , if the resul-fcs of -th0 nsxt xam ar -. a hoped
IATF' KE^VS •
newcomer. -bo Hobar-fc is Aloer-fc. VK2ZFB* ALbert is looking the place over with, the
prospect of se-b-fcling here. He has brough-b qui-be &n amouat of gear wi-fch liim . '""Jslcome +;o
Hob&rt, Albert; we hope you d cide •bb>s'fcay»
73 until nex-b m n-fch Wilt Emmett, ' VK7ZAQ.